Quote:
Originally Posted by PMok
I preferred to run Shell or 76 because no crickets, but I noticed through monitoring in my OFT that it was causing a little bit of knock. Bringing my IAM down to about 0.85 sometimes. E85 takes the crickets away. 
But this last time I switched back to 91 from E85, I filled up with Chevron. Like clockwork the crickets came back, but you know what? No knock / IAM drop. So I think although further testing is required, I will take crickets over knock/loss of power any day.  YMMV |
What does "IAM" stand for again?
I've never really had the chance or the equipment to monitor my engine, so I just stuck with what "felt/sounded" better. My 6 mile daily commute to work is probably worse for my engine than a slight knock.